diff options
Diffstat (limited to 'lisp/emacs-lisp/byte-opt.el')
| -rw-r--r-- | lisp/emacs-lisp/byte-opt.el | 19 |
1 files changed, 9 insertions, 10 deletions
diff --git a/lisp/emacs-lisp/byte-opt.el b/lisp/emacs-lisp/byte-opt.el index fec3407782e..c383e0285b9 100644 --- a/lisp/emacs-lisp/byte-opt.el +++ b/lisp/emacs-lisp/byte-opt.el @@ -593,16 +593,15 @@ Same format as `byte-optimize--lexvars', with shared structure and contents.") (lexvar (assq var byte-optimize--lexvars)) (value (byte-optimize-form expr nil))) (when lexvar - ;; If it's bound outside conditional, invalidate. - (if (assq var byte-optimize--vars-outside-condition) - ;; We are in conditional code and the variable was - ;; bound outside: cancel substitutions. - (setcdr (cdr lexvar) nil) - ;; Set a new value (if substitutable). - (setcdr (cdr lexvar) - (and (byte-optimize--substitutable-p value) - (list value)))) - (setcar (cdr lexvar) t)) ; Mark variable to be kept. + ;; Set a new value or inhibit further substitution. + (setcdr (cdr lexvar) + (and + ;; Inhibit if bound outside conditional code. + (not (assq var byte-optimize--vars-outside-condition)) + ;; The new value must be substitutable. + (byte-optimize--substitutable-p value) + (list value))) + (setcar (cdr lexvar) t)) ; Mark variable to be kept. (push var var-expr-list) (push value var-expr-list)) (setq args (cddr args))) |